US7993518B2 - Personal filtration device - Google Patents

Personal filtration device Download PDF

Info

Publication number
US7993518B2
US7993518B2 US11/991,714 US99171406A US7993518B2 US 7993518 B2 US7993518 B2 US 7993518B2 US 99171406 A US99171406 A US 99171406A US 7993518 B2 US7993518 B2 US 7993518B2
Authority
US
United States
Prior art keywords
water discharging
water
personal
filter
sealingly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US11/991,714
Other versions
US20100237002A1 (en
Inventor
Ron Shani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Watersheer Ltd
Original Assignee
Watersheer Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from IL175416A external-priority patent/IL175416A0/en
Application filed by Watersheer Ltd filed Critical Watersheer Ltd
Assigned to WATERSHEER LTD reassignment WATERSHEER LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHANI, RON
Publication of US20100237002A1 publication Critical patent/US20100237002A1/en
Application granted granted Critical
Publication of US7993518B2 publication Critical patent/US7993518B2/en
Expired - Fee Related legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/90—Additional auxiliary systems integrated with the module or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/90—Additional auxiliary systems integrated with the module or apparatus
    • B01D2313/901—Integrated prefilter
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/02—Location of water treatment or water treatment device as part of a bottle
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/06—Mounted on or being part of a faucet, shower handle or showerhead

Definitions

  • the invention pertains to personal filtration devices for dispensing drinking water for personal consumption.
  • U.S. Pat. No. 5,928,512 to Hatch et al. illustrates and describes two embodiments of personal filtration devices for mounting on a bottleneck ( 11 ) of a flexible thin walled plastic bottle ( 12 ).
  • FIGS. 1 and 2 show a personal filtration device ( 10 ) for deployment inside a bottleneck ( 11 ), and including a filter element ( 14 ) in the form of a porous tubular cylindrical block of activated carbon particles.
  • FIG. 3 and 4 show a personal filtration device ( 41 ) for externally extending from a bottleneck ( 11 ), and including a pre-filter element ( 60 ) consisting primarily of a particulate media bed ( 61 ), and a pleated paper filter element ( 66 ) for serially filtering contaminated water.
  • the personal filtration devices ( 10 ) and ( 41 ) have threaded connector means for screw threading onto a bottleneck ( 11 ) (see U.S. Pat. No. '512, Col. 5 , lines 3 to 5 , and lines 36 to 39 ).
  • the personal filtration devices ( 10 ) and ( 41 ) have an end cap ( 37 ) with a manually operated open-closed slide valve ( 40 ) (see U.S.
  • the aforesaid personal filtration devices do not have arrangements for hermetically sealing their filter arrangements, thereby shortening their lifetimes due to contact with water contents, and airborne free radicals.
  • the aforesaid personal filtration devices are intended for screw thread mounting on bottlenecks with specific external thread dimensions. But standard bottleneck sizes do not exist, thereby precluding the aforesaid personal filtration devices for use with other bottles than their intended ones.
  • the present invention is directed towards personal filtration devices for removable mounting on water discharging spouts in the form of bottlenecks, taps, army issue canteens, and the like, for dispensing drinking water for personal consumption.
  • the personal filtration devices preferably include a manually operated open-closed slide valve similar to U.S. Pat. No. '512 for correspondingly enabling and disabling dispensing drinking water but additionally designed to concomitantly operate a sealing arrangement for selectively hermetically sealing an activated carbon filter media in a sealed environment in the slide valve's closed position for prolonging the carbon filter media's lifetime.
  • the personal filtration devices are preferably capable of disassembly for rejuvenation purposes. Alternatively, the personal filtration devices can be intended for use for a predetermined time period or filtering a predetermined volume of water, and thereafter discarded.
  • the personal filtration devices can be provided with conventional threaded connector means for screw threading onto bottlenecks but they preferably include a resiliently elastic tubular universal adapter for being sealingly slidingly stretched onto a water discharging spout such that the personal filtration devices can be mounted on water discharging spouts of different external dimensions.
  • the universal adapters are formed from suitable resiliently elastic material including inter alia silicone, rubber, and the like, and are intended to be repeatedly stretched by up to, say, about 5 mm, from their nominal diameter without tearing or other permanent damage.
  • the personal filtration devices can be integrally formed with a resiliently elastic tubular universal adapter but the universal adapters are preferably implemented as discrete sleeves of either a single or a dual material construction.
  • Single material sleeves are wholly formed from suitable resiliently elastic material for sealingly slidingly stretching onto water discharging spouts.
  • Dual material sleeves typically include a rigid plastic tubular fitment integrally formed with a resiliently elastic tubular universal adapter for sealingly slidingly stretching onto water discharging spouts.
  • Discrete sleeves can be used with conventional filter devices including inter alia the aforesaid Hatch et al. filter device, thereby facilitating their use with water discharging spouts of different external diameters.
  • conventional personal filtration devices for externally extending from a water discharging spout can be formed with a resiliently elastic tubular universal adapter.
  • FIG. 1 is a pictorial view of a partially dissembled personal filtration device including a discrete sleeve of a single material construction and a discrete filter device;
  • FIG. 2 is an exploded view of a FIG. 1 's filter device
  • FIG. 3 is a longitudinal cross section of FIG. 1 's personal filtration device along line A-A in FIG. 1 in its inoperative state;
  • FIG. 4 is a longitudinal cross section of FIG. 1 's personal filtration device along line A-A in FIG. 1 in its operative state for discharging drinking water;
  • FIG. 5 is a longitudinal cross section of a disposable personal filtration device integrally formed with a rigid plastic adapter for screw threading on a bottleneck with a particular external thread diameter;
  • FIG. 6 is a longitudinal cross section of a personal filtration device including a discrete sleeve of a dual material construction.
  • FIGS. 1 to 4 show a personal filtration device 10 with a longitudinal axis 11 and including a discrete tubular sleeve 12 , and a filter device 13 for use with a conventional flexible thin walled plastic bottle 14 having a bottleneck 16 constituting a water discharging spout.
  • the bottle 14 is typically blow molded of PET or other suitable plastics, and its bottleneck 16 has an external thread diameter D 1 in the range of about 25 mm to about 28 mm depending on its volume, manufacturer, and the like.
  • the sleeve 12 has a single material construction and is wholly formed from resilient elastic material such as silicone, rubber, and the like, and includes a major wide diameter portion 17 for sealingly slidingly receiving the filter device 13 , and a minor narrow diameter portion 18 having a nominal internal diameter D 2 of about 24 mm for being sealingly slidingly stretched onto the bottleneck 16 for creating a hermetic seal.
  • the minor narrow diameter portion 18 sealingly fits over the bottleneck's external screw threads as opposed to tightly matching same in a conventional screw thread arrangement.
  • the major wide diameter portion 17 includes a leading internal annular groove 19 and the minor narrow diameter portion 18 includes a trailing internal annular flange 21 for sealing purposes.
  • the filter device 13 includes a filter housing 22 having a stepped cross section with a leading narrow diameter discharge port 23 for discharging drinking water and a trailing tubular frame 24 .
  • the frame 24 includes a leading annular flange 26 for sealing insertion into the leading internal annular groove 19 , a trailing annular flange 27 , and four sets of equidistant axially directed external ribs 28 .
  • the frame 24 supports a micronic filtration element 31 surrounding a filter casing 32 with a replaceable cartridge 33 of porous activated carbon filter media 34 for serially filtering contaminated water.
  • the micronic filtration element 31 can be implemented by a micronic filtration screen, a series of closely packed filter discs, a pleated paper filter element, and the like.
  • the filter casing 32 has a two part construction including an inverted cup shaped member 36 having a leading perforated end 37 , and a solid peripheral wall 38 with a trailing end 39 having axially directed slits 41 , and a base 42 for snap fitting onto the cup shaped member's trailing end 39 , and having a finger tab 43 for enabling its manual removal therefrom.
  • the filter device 13 includes a manually operated filter cap 44 with a leading perforated surface 46 constituted by an open-closed slide valve and slidingly reciprocal on the discharge port 23 between a closed position for sealing the discharge port 23 (see FIG. 3 ), and an open position for dispensing drinking water (see FIG. 4 ).
  • the filter device 13 includes a circular plug 47 with an axially directed upright spindle 48 having a free end 49 and four downward depending radial ribs 51 .
  • the spindle's free end 49 is interference fit inserted into a suitable tubular recess 52 formed on filter cap's underside, thereby enabling disassembly of the filter device 13 for cleaning the micronic filtration element 31 , and replacement or rejuvenation of the porous activated carbon filter media cartridge 33 .
  • the closed position of the filter cap 44 urges the plug 47 for sealing abutment against the sleeve's flange 21 for hermetically sealing the filter media 34 in a sealed environment for prolonging its lifetime (see FIG. 3 ).
  • the open position of the filter cap 44 urges the plug 47 such that its ribs 51 are aligned with the sleeve's flange 21 , thereby enabling flow communication between a bottle's interior and the filter device 13 (see FIG. 4 ).
  • the use of the personal filtration device is now described with reference to the purification of a plastic soft drink bottle filled with contaminated water from a river, a puddle, and the like.
  • the user fills a bottle with contaminated water and drops a chlorine tablet into same.
  • the user waits 10 minutes for treating the contaminated water to remove biological pollutants.
  • the user slidingly stretches the universal adapter onto the bottle's bottleneck to create a hermetic seal, and pulls the filter cap upwards.
  • the user compresses the bottle to force water radially inwards through the micronic filtration element for removing organic and inorganic materials.
  • the water flows through the slits into the filter casing to axially flow through its porous activated carbon filter media towards the discharge port to remove poisonous metals and other dissolved materials, and also neutralizes chlorine.
  • the now filtered water reaches the discharge port for discharge therefrom for drinking purposes, food and beverages preparation purposes, and the like.
  • the user pushes downwards on the filter cap to seal the filter casing in a sealed environment to prolong the lifetime of its porous activated carbon filter media.
  • the user is required to maintain the personal filtration device the earlier between a predetermined time interval and the filtering of a predetermined volume of contaminated water.
  • the user maintains the personal filtration device by removing it from a bottle, tap, and the like, and removing the filter device from the sleeve.
  • the user pulls the filter cap off the spindle to disassemble the filter device, and removes the micronic filtration element for cleaning under fresh tap water.
  • the user removes the filter cartridge and boils it for about 10 minutes for rejuvenating same.
  • the user re-assembles the personal filtration device in its inoperative state ready for use.
  • FIG. 5 shows a disposable personal filtration device 60 similar to the personal filtration device 10 but integrally formed with a rigid plastic adapter 61 for screw threading on a bottleneck with a particular external thread dimension in a similar manner to the aforesaid Hatch et al. filter device.
  • the rigid plastic adapter 61 has an internal screw thread tightly matching the bottleneck's external screw thread as opposed to the sleeve 12 's universal sealing arrangement.
  • FIG. 6 shows a personal filtration device 70 similar to the personal filtration device 10 but integrally formed with a tubular sleeve 71 of a dual material construction including a rigid plastic tubular fitment 72 and a resiliently elastic tubular universal adapter 73 integrally formed therewith.
  • the tubular sleeve 71 can be implemented as a discrete item for removable mounting on a filter device using a snap fit connection, a bayonet connection, and the like.

Abstract

Personal filtration devices for removable mounting on water discharging spouts in the form of bottlenecks, taps, and the like, for dispensing drinking water for personal consumption. The personal filtration devices preferably include a manually operated open-closed slide valve for correspondingly enabling and disabling dispensing drinking water and hermetically sealing an activated carbon filter media in a sealed environment in its closed position for prolonging the carbon filter media's lifetime. The personal filtration devices are preferably capable of disassembly for rejuvenation purposes, and are removably sealingly slidingly inserted into a sleeve with a resiliently elastic tubular universal adapter for being sealingly slidingly stretched onto water discharging spouts as opposed to screw threaded thereon whereby the universal adapters are capable of being sealingly slidingly stretched onto water discharging spouts of different external diameters.

Description

CROSS-REFERENCE TO RELATED APPLICATION
This application is the National Phase filing of International Application Serial No. PCT/IL2006/001030 filed on 6 Sep. 2006, which is incorporated herein by reference.
FIELD OF THE INVENTION
The invention pertains to personal filtration devices for dispensing drinking water for personal consumption.
BACKGROUND OF THE INVENTION
U.S. Pat. No. 5,928,512 to Hatch et al. illustrates and describes two embodiments of personal filtration devices for mounting on a bottleneck (11) of a flexible thin walled plastic bottle (12). U.S. Pat. No. '512's FIGS. 1 and 2 show a personal filtration device (10) for deployment inside a bottleneck (11), and including a filter element (14) in the form of a porous tubular cylindrical block of activated carbon particles. U.S. Pat. No. '512's FIGS. 3 and 4 show a personal filtration device (41) for externally extending from a bottleneck (11), and including a pre-filter element (60) consisting primarily of a particulate media bed (61), and a pleated paper filter element (66) for serially filtering contaminated water. The personal filtration devices (10) and (41) have threaded connector means for screw threading onto a bottleneck (11) (see U.S. Pat. No. '512, Col. 5, lines 3 to 5, and lines 36 to 39). The personal filtration devices (10) and (41) have an end cap (37) with a manually operated open-closed slide valve (40) (see U.S. '512, Col. 5, lines 10 to 13). However, the aforesaid personal filtration devices do not have arrangements for hermetically sealing their filter arrangements, thereby shortening their lifetimes due to contact with water contents, and airborne free radicals. Moreover, the aforesaid personal filtration devices are intended for screw thread mounting on bottlenecks with specific external thread dimensions. But standard bottleneck sizes do not exist, thereby precluding the aforesaid personal filtration devices for use with other bottles than their intended ones.
SUMMARY OF THE INVENTION
The present invention is directed towards personal filtration devices for removable mounting on water discharging spouts in the form of bottlenecks, taps, army issue canteens, and the like, for dispensing drinking water for personal consumption. The personal filtration devices preferably include a manually operated open-closed slide valve similar to U.S. Pat. No. '512 for correspondingly enabling and disabling dispensing drinking water but additionally designed to concomitantly operate a sealing arrangement for selectively hermetically sealing an activated carbon filter media in a sealed environment in the slide valve's closed position for prolonging the carbon filter media's lifetime. The personal filtration devices are preferably capable of disassembly for rejuvenation purposes. Alternatively, the personal filtration devices can be intended for use for a predetermined time period or filtering a predetermined volume of water, and thereafter discarded.
The personal filtration devices can be provided with conventional threaded connector means for screw threading onto bottlenecks but they preferably include a resiliently elastic tubular universal adapter for being sealingly slidingly stretched onto a water discharging spout such that the personal filtration devices can be mounted on water discharging spouts of different external dimensions. The universal adapters are formed from suitable resiliently elastic material including inter alia silicone, rubber, and the like, and are intended to be repeatedly stretched by up to, say, about 5 mm, from their nominal diameter without tearing or other permanent damage. It is thus envisaged to provide universal adapters with nominal internal diameters starting from about 24 mm and increasing by about 5 mm increments thereby affording personal filtration devices suitable for use with bottlenecks typically having an external thread diameter of about 25 mm to about 28 mm, army issue canteens typically having an external thread diameter of about 50 mm, and the like.
The personal filtration devices can be integrally formed with a resiliently elastic tubular universal adapter but the universal adapters are preferably implemented as discrete sleeves of either a single or a dual material construction. Single material sleeves are wholly formed from suitable resiliently elastic material for sealingly slidingly stretching onto water discharging spouts. Dual material sleeves typically include a rigid plastic tubular fitment integrally formed with a resiliently elastic tubular universal adapter for sealingly slidingly stretching onto water discharging spouts.
Discrete sleeves can be used with conventional filter devices including inter alia the aforesaid Hatch et al. filter device, thereby facilitating their use with water discharging spouts of different external diameters. Also, conventional personal filtration devices for externally extending from a water discharging spout can be formed with a resiliently elastic tubular universal adapter.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to understand the invention and to see how it can be carried out in practice, preferred embodiments will now be described, by way of non-limiting examples only, with reference to the accompanying drawings in which similar parts are likewise numbered, and in which:
FIG. 1 is a pictorial view of a partially dissembled personal filtration device including a discrete sleeve of a single material construction and a discrete filter device;
FIG. 2 is an exploded view of a FIG. 1's filter device;
FIG. 3 is a longitudinal cross section of FIG. 1's personal filtration device along line A-A in FIG. 1 in its inoperative state;
FIG. 4 is a longitudinal cross section of FIG. 1's personal filtration device along line A-A in FIG. 1 in its operative state for discharging drinking water;
FIG. 5 is a longitudinal cross section of a disposable personal filtration device integrally formed with a rigid plastic adapter for screw threading on a bottleneck with a particular external thread diameter; and
FIG. 6 is a longitudinal cross section of a personal filtration device including a discrete sleeve of a dual material construction.
 DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE PRESENT INVENTION
FIGS. 1 to 4 show a personal filtration device 10 with a longitudinal axis 11 and including a discrete tubular sleeve 12, and a filter device 13 for use with a conventional flexible thin walled plastic bottle 14 having a bottleneck 16 constituting a water discharging spout. The bottle 14 is typically blow molded of PET or other suitable plastics, and its bottleneck 16 has an external thread diameter D1 in the range of about 25 mm to about 28 mm depending on its volume, manufacturer, and the like. The sleeve 12 has a single material construction and is wholly formed from resilient elastic material such as silicone, rubber, and the like, and includes a major wide diameter portion 17 for sealingly slidingly receiving the filter device 13, and a minor narrow diameter portion 18 having a nominal internal diameter D2 of about 24 mm for being sealingly slidingly stretched onto the bottleneck 16 for creating a hermetic seal. The minor narrow diameter portion 18 sealingly fits over the bottleneck's external screw threads as opposed to tightly matching same in a conventional screw thread arrangement. The major wide diameter portion 17 includes a leading internal annular groove 19 and the minor narrow diameter portion 18 includes a trailing internal annular flange 21 for sealing purposes.
The filter device 13 includes a filter housing 22 having a stepped cross section with a leading narrow diameter discharge port 23 for discharging drinking water and a trailing tubular frame 24. The frame 24 includes a leading annular flange 26 for sealing insertion into the leading internal annular groove 19, a trailing annular flange 27, and four sets of equidistant axially directed external ribs 28. The frame 24 supports a micronic filtration element 31 surrounding a filter casing 32 with a replaceable cartridge 33 of porous activated carbon filter media 34 for serially filtering contaminated water. The micronic filtration element 31 can be implemented by a micronic filtration screen, a series of closely packed filter discs, a pleated paper filter element, and the like. The filter casing 32 has a two part construction including an inverted cup shaped member 36 having a leading perforated end 37, and a solid peripheral wall 38 with a trailing end 39 having axially directed slits 41, and a base 42 for snap fitting onto the cup shaped member's trailing end 39, and having a finger tab 43 for enabling its manual removal therefrom.
The filter device 13 includes a manually operated filter cap 44 with a leading perforated surface 46 constituted by an open-closed slide valve and slidingly reciprocal on the discharge port 23 between a closed position for sealing the discharge port 23 (see FIG. 3), and an open position for dispensing drinking water (see FIG. 4). The filter device 13 includes a circular plug 47 with an axially directed upright spindle 48 having a free end 49 and four downward depending radial ribs 51. The spindle's free end 49 is interference fit inserted into a suitable tubular recess 52 formed on filter cap's underside, thereby enabling disassembly of the filter device 13 for cleaning the micronic filtration element 31, and replacement or rejuvenation of the porous activated carbon filter media cartridge 33. The closed position of the filter cap 44 urges the plug 47 for sealing abutment against the sleeve's flange 21 for hermetically sealing the filter media 34 in a sealed environment for prolonging its lifetime (see FIG. 3). The open position of the filter cap 44 urges the plug 47 such that its ribs 51 are aligned with the sleeve's flange 21, thereby enabling flow communication between a bottle's interior and the filter device 13 (see FIG. 4).
The use of the personal filtration device is now described with reference to the purification of a plastic soft drink bottle filled with contaminated water from a river, a puddle, and the like. The user fills a bottle with contaminated water and drops a chlorine tablet into same. The user waits 10 minutes for treating the contaminated water to remove biological pollutants. The user slidingly stretches the universal adapter onto the bottle's bottleneck to create a hermetic seal, and pulls the filter cap upwards. The user compresses the bottle to force water radially inwards through the micronic filtration element for removing organic and inorganic materials. The water flows through the slits into the filter casing to axially flow through its porous activated carbon filter media towards the discharge port to remove poisonous metals and other dissolved materials, and also neutralizes chlorine. The now filtered water reaches the discharge port for discharge therefrom for drinking purposes, food and beverages preparation purposes, and the like. The user pushes downwards on the filter cap to seal the filter casing in a sealed environment to prolong the lifetime of its porous activated carbon filter media.
The user is required to maintain the personal filtration device the earlier between a predetermined time interval and the filtering of a predetermined volume of contaminated water. The user maintains the personal filtration device by removing it from a bottle, tap, and the like, and removing the filter device from the sleeve. The user pulls the filter cap off the spindle to disassemble the filter device, and removes the micronic filtration element for cleaning under fresh tap water. The user removes the filter cartridge and boils it for about 10 minutes for rejuvenating same. The user re-assembles the personal filtration device in its inoperative state ready for use.
FIG. 5 shows a disposable personal filtration device 60 similar to the personal filtration device 10 but integrally formed with a rigid plastic adapter 61 for screw threading on a bottleneck with a particular external thread dimension in a similar manner to the aforesaid Hatch et al. filter device. The rigid plastic adapter 61 has an internal screw thread tightly matching the bottleneck's external screw thread as opposed to the sleeve 12's universal sealing arrangement.
FIG. 6 shows a personal filtration device 70 similar to the personal filtration device 10 but integrally formed with a tubular sleeve 71 of a dual material construction including a rigid plastic tubular fitment 72 and a resiliently elastic tubular universal adapter 73 integrally formed therewith. Alternatively, the tubular sleeve 71 can be implemented as a discrete item for removable mounting on a filter device using a snap fit connection, a bayonet connection, and the like.
While the invention has been described with respect to a limited number of embodiments, it will be appreciated that many variations, modifications, and other applications of the invention can be made within the scope of the appended claims.

Claims (2)

1. A personal filtration device for removable mounting on a water discharging spout for dispensing drinking water for personal consumption, the personal filtration device comprising:
(a) a filter device for sealingly mounting on the water discharging spout and externally extending therefrom, and having an activated filter component for filtering water passing from the water discharging spout to a discharge port for dispensing drinking water;
(b) a manually operated filter cap for selectively opening and closing said discharge port for correspondingly enabling and disabling dispensing drinking water from said discharge port;
(c) a sealing arrangement for selectively hermetically sealing said activated filter component in a sealed environment; and
(d) a discrete tubular sleeve including a resiliently elastic tubular universal adapter for sealingly slidingly stretching onto a water discharging spout for removably sealingly mounting said filter device thereon wherein said sleeve has a dual material construction including a rigid plastic tubular fitment integrally formed with said resiliently elastic tubular universal adapter, whereby said sleeve enables said filter device to be removably sealingly mounted on water discharging spouts of different external diameters.
2. A personal filtration device for removable mounting on a water discharging spout for dispensing drinking water for personal consumption, the personal filtration device comprising:
(a) a filter device for sealingly mounting on the water discharging spout and externally extending therefrom, and having a filter component for filtering water passing from the water discharging spout to a discharge port for dispensing drinking water;
(b) a manually operated filter cap for selectively opening and closing said discharge port for respectively enabling and disabling dispensing water from said discharge port;
(c) a resiliently elastic tubular universal adapter for sealingly slidingly stretching onto a water discharging spout for mounting said filter device thereon whereby said universal adapter enables said filter device to be removably sealingly mounted on water discharging spouts of different external diameters; and
(d) a discrete tubular sleeve including said resiliently elastic tubular universal adapter wherein said sleeve has a dual material construction including a rigid plastic tubular fitment integrally formed with said resiliently elastic tubular universal adapter.
US11/991,714 2005-09-07 2006-09-06 Personal filtration device Expired - Fee Related US7993518B2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
IL170729 2005-09-07
IL17072905 2005-09-07
IL175416A IL175416A0 (en) 2006-05-04 2006-05-04 Personal filtration device
IL175419 2006-05-04
IL175416 2006-05-04
PCT/IL2006/001030 WO2007029243A2 (en) 2005-09-07 2006-09-06 Personal filtration device

Publications (2)

Publication Number Publication Date
US20100237002A1 US20100237002A1 (en) 2010-09-23
US7993518B2 true US7993518B2 (en) 2011-08-09

Family

ID=37836253

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/991,714 Expired - Fee Related US7993518B2 (en) 2005-09-07 2006-09-06 Personal filtration device

Country Status (3)

Country Link
US (1) US7993518B2 (en)
IL (1) IL189825A0 (en)
WO (1) WO2007029243A2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100064896A1 (en) * 2007-07-04 2010-03-18 Valeriy Evgenyevich Kisterev Device for treating and purifying a liquid product
US8313644B2 (en) * 2010-01-13 2012-11-20 OZOlab Bottle with an integrated filtration assembly that is manually operated using a plunger
US20130240429A1 (en) * 2012-03-13 2013-09-19 Thomas Robbins Filter cartridge protective sleeve
DE102014101361A1 (en) 2013-03-04 2014-09-18 Andreas BABLICH Closure element for a beverage container
US20170016665A1 (en) * 2015-07-13 2017-01-19 3M Innovative Properties Company Translating Treatment Cartridge, Fluid Dispensing System, and Method of Using
CN107261576A (en) * 2017-08-10 2017-10-20 合肥达科环保科技有限公司 A kind of activated carbon filter component of portable water purification kit
US10882670B2 (en) * 2017-09-14 2021-01-05 Moon Hee Kim Powder-type hair thickening agent storage container having plurality of spurting holes
US11319124B2 (en) * 2018-03-08 2022-05-03 Purewine Inc. Beverage filtration device
US11511917B2 (en) * 2019-09-13 2022-11-29 Peter C. Wierzbicki Drinking spout with trigger and valve mechanism for commercial bottles and cans
US11518581B2 (en) * 2011-09-21 2022-12-06 Hydros Bottle, Llc Water bottle
US11825974B1 (en) * 2020-03-01 2023-11-28 Michael O. Murphy Expandable strainer insert for bottles

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2477942B (en) * 2010-02-18 2012-07-04 Icon Technology Systems Ltd Water filters
US20120211528A1 (en) * 2011-02-18 2012-08-23 Patrick Greeley Beer/soda bottle spray adapter
USD732892S1 (en) 2013-10-25 2015-06-30 Brita Lp Water bottle
USD736562S1 (en) 2013-12-09 2015-08-18 Brita Lp Water bottle
US9586733B2 (en) * 2014-06-27 2017-03-07 Ubaldo GARZA Pressure-fitted insertable drinking spout adapted for varying bottle neck sizes
USD750428S1 (en) 2015-05-26 2016-03-01 The Glad Products Company Water bottle top
CN108854180B (en) * 2018-08-29 2024-01-30 中国农业科学院农田灌溉研究所 Rotary filter cap of sand filter for micro-irrigation
WO2020185203A1 (en) * 2019-03-11 2020-09-17 Jones Wayne H Devices, methods and systems for priming water filters
CN114057256A (en) * 2021-11-12 2022-02-18 谢富滔 Activated carbon adsorption treatment equipment for sewage

Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US768951A (en) 1903-08-21 1904-08-30 William Stepney Rawson High-pressure filter.
US2368035A (en) * 1940-12-05 1945-01-23 Ralph S Moore Water-purifying and softening device
US4895651A (en) * 1988-02-01 1990-01-23 Niddleton Glen H Personal, portable, disposable tap water filter
US4986901A (en) 1990-02-12 1991-01-22 Innova Pure Water Inc. Bottled water cap with indicator and adaptor
US5417860A (en) 1993-08-30 1995-05-23 Filtertek, Inc. Bottle filter and pouring device
US5601199A (en) 1994-01-05 1997-02-11 Marty; Irene Filter element for a beverage container
US5609759A (en) 1995-06-02 1997-03-11 Innova Pure Water Inc. Bottle filter cap
CA2176518A1 (en) 1996-05-14 1997-11-15 Daniel Collette Sport and recreational water bottle cap possessing a housing apparatus designed to accommodate and operate a replaceable filter insert cartridge
US5688397A (en) * 1995-06-05 1997-11-18 Malmborg; Rick Combination bottle cap and filter
US5840185A (en) 1996-07-23 1998-11-24 Douglass E. Hughes Sports bottle filter cartridge
JPH1177026A (en) 1997-09-08 1999-03-23 Takeshi Tokunaga Water storage type water purification device which is used by being fitted to bottle vessel
US5914045A (en) 1995-12-26 1999-06-22 Palmer; Carl W Portable water filtration system and method
US5928512A (en) * 1996-04-03 1999-07-27 Plymouth Products, Inc. Demountable filter for a bottle or the like
US6004460A (en) * 1998-03-19 1999-12-21 Seychelle Environmental Technology, Inc. Portable water filtration bottle
US6136189A (en) * 1998-01-20 2000-10-24 Innova Pure Water Inc. Enhanced in-bottle filtration mechanism and techniques
US6153096A (en) 1998-08-10 2000-11-28 Innova Pure Water, Inc. Shroud for bottle mounted filters
WO2001009040A1 (en) 1999-07-30 2001-02-08 Windmill Holdings Limited A filtered water drinking bottle
US6193886B1 (en) 1998-08-11 2001-02-27 Innova Pure Water Inc. Sub-micron sport bottle with ceramic filtering element
US6200471B1 (en) 1999-01-12 2001-03-13 Innova Pure Water, Inc. Bottle specialty water filters
US6284130B1 (en) 1999-02-04 2001-09-04 Dana Corporation Filter cartridge with clean side anti-drainback valve
GB2360954A (en) 2000-03-28 2001-10-10 Sean Harris Portable water filter
JP2002052382A (en) 2000-08-10 2002-02-19 Nippon Aruba Kk Simple filtration type water cleaning device utilizing bottle
US6395170B1 (en) 1996-07-23 2002-05-28 Douglass E. Hughes Universal filter for soda pop and bottled water bottles
US6468435B1 (en) 1996-07-23 2002-10-22 Douglass E. Hughes Automatic valved filter assembly
JP2002321742A (en) 2001-04-23 2002-11-05 武志 ▲高▼子 Portable bottle
US6478956B2 (en) 2001-02-27 2002-11-12 Kamaljit S. Kaura Manually pressurized water filtering container
WO2003011766A1 (en) 2001-07-30 2003-02-13 Janick Simeray Universal filter cartridge
US6569329B1 (en) 1999-05-06 2003-05-27 Innova Pure Water Inc. Personal water filter bottle system
US6733669B1 (en) 2003-01-20 2004-05-11 Bertram Valentine Crick Water filter bottle
US20050051476A1 (en) 2003-09-10 2005-03-10 Tsao-Shin Chen Filtering device for a portable beverage container
US6945289B2 (en) 2003-10-24 2005-09-20 The Clorox Company Bottled water dispenser with shutoff, variable filtration capacity and replaceable cartridge filter

Patent Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US768951A (en) 1903-08-21 1904-08-30 William Stepney Rawson High-pressure filter.
US2368035A (en) * 1940-12-05 1945-01-23 Ralph S Moore Water-purifying and softening device
US4895651A (en) * 1988-02-01 1990-01-23 Niddleton Glen H Personal, portable, disposable tap water filter
US4986901A (en) 1990-02-12 1991-01-22 Innova Pure Water Inc. Bottled water cap with indicator and adaptor
US5417860A (en) 1993-08-30 1995-05-23 Filtertek, Inc. Bottle filter and pouring device
US5601199A (en) 1994-01-05 1997-02-11 Marty; Irene Filter element for a beverage container
US5609759A (en) 1995-06-02 1997-03-11 Innova Pure Water Inc. Bottle filter cap
US5688397A (en) * 1995-06-05 1997-11-18 Malmborg; Rick Combination bottle cap and filter
US5914045A (en) 1995-12-26 1999-06-22 Palmer; Carl W Portable water filtration system and method
US5928512A (en) * 1996-04-03 1999-07-27 Plymouth Products, Inc. Demountable filter for a bottle or the like
CA2176518A1 (en) 1996-05-14 1997-11-15 Daniel Collette Sport and recreational water bottle cap possessing a housing apparatus designed to accommodate and operate a replaceable filter insert cartridge
US5840185A (en) 1996-07-23 1998-11-24 Douglass E. Hughes Sports bottle filter cartridge
US6468435B1 (en) 1996-07-23 2002-10-22 Douglass E. Hughes Automatic valved filter assembly
US6395170B1 (en) 1996-07-23 2002-05-28 Douglass E. Hughes Universal filter for soda pop and bottled water bottles
JPH1177026A (en) 1997-09-08 1999-03-23 Takeshi Tokunaga Water storage type water purification device which is used by being fitted to bottle vessel
US6136189A (en) * 1998-01-20 2000-10-24 Innova Pure Water Inc. Enhanced in-bottle filtration mechanism and techniques
US6004460A (en) * 1998-03-19 1999-12-21 Seychelle Environmental Technology, Inc. Portable water filtration bottle
US6153096A (en) 1998-08-10 2000-11-28 Innova Pure Water, Inc. Shroud for bottle mounted filters
US6193886B1 (en) 1998-08-11 2001-02-27 Innova Pure Water Inc. Sub-micron sport bottle with ceramic filtering element
US6200471B1 (en) 1999-01-12 2001-03-13 Innova Pure Water, Inc. Bottle specialty water filters
US6284130B1 (en) 1999-02-04 2001-09-04 Dana Corporation Filter cartridge with clean side anti-drainback valve
US6569329B1 (en) 1999-05-06 2003-05-27 Innova Pure Water Inc. Personal water filter bottle system
WO2001009040A1 (en) 1999-07-30 2001-02-08 Windmill Holdings Limited A filtered water drinking bottle
GB2360954A (en) 2000-03-28 2001-10-10 Sean Harris Portable water filter
JP2002052382A (en) 2000-08-10 2002-02-19 Nippon Aruba Kk Simple filtration type water cleaning device utilizing bottle
US6478956B2 (en) 2001-02-27 2002-11-12 Kamaljit S. Kaura Manually pressurized water filtering container
JP2002321742A (en) 2001-04-23 2002-11-05 武志 ▲高▼子 Portable bottle
WO2003011766A1 (en) 2001-07-30 2003-02-13 Janick Simeray Universal filter cartridge
US6733669B1 (en) 2003-01-20 2004-05-11 Bertram Valentine Crick Water filter bottle
US20050051476A1 (en) 2003-09-10 2005-03-10 Tsao-Shin Chen Filtering device for a portable beverage container
US6945289B2 (en) 2003-10-24 2005-09-20 The Clorox Company Bottled water dispenser with shutoff, variable filtration capacity and replaceable cartridge filter

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100064896A1 (en) * 2007-07-04 2010-03-18 Valeriy Evgenyevich Kisterev Device for treating and purifying a liquid product
US8313644B2 (en) * 2010-01-13 2012-11-20 OZOlab Bottle with an integrated filtration assembly that is manually operated using a plunger
US11518581B2 (en) * 2011-09-21 2022-12-06 Hydros Bottle, Llc Water bottle
US20230348146A1 (en) * 2011-09-21 2023-11-02 Hydros Bottle, Llc Water bottle
US20130240429A1 (en) * 2012-03-13 2013-09-19 Thomas Robbins Filter cartridge protective sleeve
DE102014101361A1 (en) 2013-03-04 2014-09-18 Andreas BABLICH Closure element for a beverage container
DE102014101361B4 (en) * 2013-03-04 2015-03-26 Andreas BABLICH Closure element for a beverage container
US20170016665A1 (en) * 2015-07-13 2017-01-19 3M Innovative Properties Company Translating Treatment Cartridge, Fluid Dispensing System, and Method of Using
US10563908B2 (en) * 2015-07-13 2020-02-18 3M Innovative Properties Company Translating treatment cartridge, fluid dispensing system, and method of using
CN107261576A (en) * 2017-08-10 2017-10-20 合肥达科环保科技有限公司 A kind of activated carbon filter component of portable water purification kit
US10882670B2 (en) * 2017-09-14 2021-01-05 Moon Hee Kim Powder-type hair thickening agent storage container having plurality of spurting holes
US11319124B2 (en) * 2018-03-08 2022-05-03 Purewine Inc. Beverage filtration device
US11511917B2 (en) * 2019-09-13 2022-11-29 Peter C. Wierzbicki Drinking spout with trigger and valve mechanism for commercial bottles and cans
US11639254B2 (en) 2019-09-13 2023-05-02 Peter C. Wierzbicki Drinking spout with trigger and valve mechanism for bottles and cans
US11825974B1 (en) * 2020-03-01 2023-11-28 Michael O. Murphy Expandable strainer insert for bottles

Also Published As

Publication number Publication date
US20100237002A1 (en) 2010-09-23
WO2007029243A2 (en) 2007-03-15
WO2007029243A3 (en) 2007-07-26
WO2007029243A8 (en) 2008-01-17
IL189825A0 (en) 2008-08-07

Similar Documents

Publication Publication Date Title
US7993518B2 (en) Personal filtration device
US5928512A (en) Demountable filter for a bottle or the like
US6193886B1 (en) Sub-micron sport bottle with ceramic filtering element
US6165362A (en) Bottle filter cap
US7585409B2 (en) Multi-stage water purification device
US8216462B2 (en) Portable drinking water purification device
US5733448A (en) Manually pressurized water filtering container
US7507338B2 (en) Universal water purifier unit assembly device
RU2328523C1 (en) Device for liquid product processing and cleaning
US6733669B1 (en) Water filter bottle
CA3021855C (en) Filter cartridges for jug container
US4283283A (en) Water filter
JPH0155885B2 (en)
US2566371A (en) Water filter
US20020117442A1 (en) Manually pressurized water filtering container
CA2892383A1 (en) Filter assembly and systems/methods of dispensing from and storing the filter assembly
AU2009290148A1 (en) Drink bottle
US7448518B2 (en) Dispenser cap and method of use
JPH10211954A (en) Water treatment cartridge, structure of combining cartridge with drink bottle, and water treatment method employing the cartridge
US11339060B2 (en) Retrofit bottle filtration device
EP4349733A1 (en) Portable water bottle cap with built-in filter
WO2022256785A1 (en) Free flow filter bottle
WO2020021393A1 (en) Filtration device for drinking water
JP2004209436A (en) Water purifier
CA2500450A1 (en) Water filter bottle

Legal Events

Date Code Title Description
AS Assignment

Owner name: WATERSHEER LTD, ISRAEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SHANI, RON;REEL/FRAME:020688/0103

Effective date: 20080301

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20150809